Grill plate attachment for a griddle grate



FIG. 1 is a top right-side perspective of a grill plate attachment for a griddle grate showing my new design;

FIG. 2 is a bottom left-side perspective view thereof;

FIG. 3 is a front side elevation thereof;

FIG. 4 is a rear side elevation thereof;

FIG. 5 is a right side elevation thereof, the left side being identical thereto;

FIG. 6 is a top plan view thereof; and,

FIG. 7 is a bottom plan view thereof. 

CLAIM The ornamental design for a grill plate attachment for a griddle grate, as shown and described. 